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说明：  ds1302时钟c语言驱动源码，适用于51单片机开发板。(DS1302 clock C language driver source code, suitable for 51 single chip development board.)

说明：  Butterworth Filter (digital image processing)

C# ADO.NET操作数据库的一些实例源码，主要涉及一些数据日历、DataView操作、文件上传、DataGridView操作等，更多的是一些数据库方面的操作实例。

键盘输出,可以了解键盘输出的ASCII， 对初学者有用-The keyboard output, you can learn the keyboard output, ASCII, useful for beginners

（1）设计一个“简易计算器”，主要实现判断输入的表达式是否合法将中缀表达式转换成二叉表达式树。后序遍历求出表达式的值。能判断输入的表达式是否合法。 （2）用链式存储存储信息，求值时可以采用递归的思想，对表达式进行后序遍历。 （3）将操作结果保存到外部文件。((1) Design a "simple calculator" to judge whether the input expression is legitimate or not and convert infix expression into binary expression tree. The value of the expression is obtained by post-order traversal. Can judge whether the input expression is legitimate. (2) Store information in chain mode. When evaluating the value, we can use the idea of recursion to carry out post-order traversal of the expression. (3) To save the operation results to external files.)

Symbian OS Socket任务管理器服务器源代码 可以学习一下-Symbian OS Socket Task Manager server source code can learn about

说明：  qt 温湿度上位机client的例子，可以直接下载使用，对于初学者很有用。(Qt Temperature and humidity PC example, can be downloaded and used directly, useful for beginners.)

属性约简(MATLAB算法)有实例有讲解(Attribute reduction (MATLAB algorithm) examples have explained)

一个简单的井字游戏,不是人机对战的，游戏需要两个人参与，在此抛砖引玉，希望有人能给我人机对战的代码。-gridwork a simple game, not the man-machine players, the game requires two people to participate in this suit, hoping that someone can give me man-machine players code.

说明：  四轮驱动电动汽车驱动力控制模型，simulink版本(Driving Force Control Model of Four-Wheel Drive Electric Vehicle, Simlink Version)